Cita APA (7a ed.)
Wolfe, D. B. (1990). Serving the ageless market: Strategies for selling to the fifty-plus market. McGraw-Hill, Inc.
Cita Chicago Style (17a ed.)
Wolfe, David B. Serving the Ageless Market: Strategies for Selling to the Fifty-plus Market. New York: McGraw-Hill, Inc, 1990.
Cita MLA (9a ed.)
Wolfe, David B. Serving the Ageless Market: Strategies for Selling to the Fifty-plus Market. McGraw-Hill, Inc, 1990.
Precaución: Estas citas no son 100% exactas.